Kang: We have no devil, Kirk. But we understand the habits of yours. (to the rest of the landing party) I shall torture you to death... one by one... until your noble captain cries enough... Who will be first?

CHEKOV: Cossacks! Filthy Klingon murderers! You killed my brother Piotr at the Archanis 4 research outpost. One hundred peaceful people massacred. Just like you did here. My brother, you killed my brother!